Gerda PRO System WKM4 Euro Cylinder Lock 35/45 mm Class D Drill Resistant Nickel Satin

Product Overview

Gerda PRO System (WKM4) 35/45 nickel satin is a high-security euro cylinder lock, designed to be used with mortise locks for enhanced protection in residential and commercial doors. Engineered to meet the stringent PN-EN 1303:2015-07 standard and classified at the highest security grades (1 6 0 B 0 C 6 D), it has been certified by the Polish Institute of Precision Mechanics. This cylinder is permitted for installation in fire-rated and smoke-control doors, ensuring regulatory compliance in demanding environments.

The key distinguishing feature of this SKU is its class D resistance rating, providing up to 10 minutes of drill and mechanical attack protection, supported by internal hardened steel components and anti-bumping pins. For B2B buyers prioritizing security in high-risk entryways and regulatory demand, this enhanced attack resistance significantly lowers procurement and installation risk. It is particularly suited for bulk installation in multi-family residential projects, office complexes, or fire-rated access points requiring certified cylinder locks.

Key Features

• Class D attack resistance ? withstands up to 10 minutes of drilling and mechanical attacks per certification


• Certified to PN-EN 1303:2015-07 ? tested and classified by the Institute of Precision Mechanics in Warsaw


• Anti-bumping and anti-pick protection ? additional top pins and steel barriers impede covert lock manipulation


• Corrosion and temperature resistance ? operates reliably from -20°C to +80°C, rated at highest class C


• 6 tumbler mechanism ? supports over 2,700,000 unique key codes for advanced key security


• Approved for fire and smoke doors ? meets fire safety requirements for certified installations


• Includes 5 drilled keys, code card, fixing screw ? full set for immediate installation

Technical Specifications

• Cylinder Length: 35/45 mm


• Material: Nickel satin finish


• Classification: 1 6 0 B 0 C 6 D (PN-EN 1303:2015-07)


• Certification: Institute of Precision Mechanics (IMP), Warsaw


• Key Combinations: Over 2,700,000


• Number of Tumblers: 6


• Drill Resistance: Class D (5?10 min attack time)


• Corrosion Resistance: Class C (highest), -20°C to +80°C


• Fire Door Approval: Yes


• Keys Included: 5 drilled keys


• Accessories Included: Code card, fixing screw

Applications

Commonly installed in residential apartment doors, office entryways, and commercial property main doors requiring high-security euro cylinder hardware. Compliant for use in fire-rated and smoke-control door assemblies per PN-EN 1303 and fire safety approvals. Suitable for bulk procurement in residential developments, office buildings, and public sector facilities where certified attack-resistant locking is mandated.

Packaging & Shipping

Each cylinder is factory sealed in a tamper-evident box containing five drilled keys, a code card, fixing screw, and installation guide. Bulk procurement options provided with secure packaging for large project orders.